Question about 2002 Pontiac Grand Prix

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Emission control diagram on 2002 pontiac grand prix

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  • Pontiac Master
  • 451 Answers

Log in to autozone.com. they have a free tech tips and diagrams for stuff just like this..its free. this should answer your question.

Posted on Dec 26, 2009

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  • Pontiac Master
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There should be a sticker on the underside of the hood that includes the vacuum diagram. If you live in a state that does emissions testing I don't know if your system is different or not from a model sold in a state that doesn't.

Posted on Jun 21, 2009

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ryanplex
  • 57 Answers

SOURCE: failed emissions stating it was

Your o2 sensor needs to be replaced. You can order the part online or from your dealership.

Posted on Aug 24, 2011

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Cutting off the catalytic converter and keeping it


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